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HCL AION is affected by multiple security vulnerabilities.

3.1LowCNA
Exploited
No known exploitation
Fix
No fix listed
Who is exposed
Not reported
Published
Last modified
11/100 · provisional
None on Exploit-DB, Metasploit or GitHub

Summary

HCL AION is affected by a missing Content-Security-Policy response header, which lets browsers apply no restrictions on where scripts and other content load from. An attacker can reach this remotely, but they need a low-privilege login, and they could use it to aid cross-site scripting or content-injection attacks, with effects that depend on specific conditions.

Written by anthropic/claude-haiku-5.5 from the sources below. Verify against them.

Read the original description

HCL AION is affected by a vulnerability where the Content-Security-Policy (CSP) security response header was missing from application responses. Without this header, the browser does not restrict the sources of scripts and other content, increasing exposure to cross-site scripting and content-injection attacks, potentially resulting in unintended behavior or security impact under certain conditions.

cve.now Index

11Pcve.now Index 11 of 100 · methodology v3 · provisional
  • Exploitation?/40Unknown. No CISA SSVC exploitation rating yet
  • Exposure3/25Reachable over the network · Unknown: No advisory context yet
  • Reach?/20Unknown. No tracked technology or package matched
  • Severity3.1/10CVSS 3.1
  • No patch5/5No patch listed yet

What would change the score

  • Would score about 66 if added to CISA KEV
  • Would score about 61 if CISA's SSVC rates exploitation active
  • Would score about 30 if advisories confirm default setups are exposed

Timeline

  1. CVE published
  2. Record last updated
  3. First seen by cve.now

Affected versions

  • HCL Software HCL AION

    Version 2.7.0

Evidence 1

  1. Link

Corrections

None so far.

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Questions about CVE-2026-21834

Is CVE-2026-21834 being exploited?

It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked.Source: cve.now feed data

Which versions are affected by CVE-2026-21834?

HCL AION: version Version 2.7.0.Source: cve.now feed data